ISL6431A 데이터 시트보기 (PDF) - Intersil

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ISL6431A

Advanced Pulse Width Modulation (PWM) Controller for Broadband Applications

Intersil 

ISL6431A

ISL6431A DC-DC Converter Application Circuit

Figure 8 shows an application circuit of a DC-DC Converter.

Detailed information on the circuit, including a complete Bill-

of-Materials and circuit board description, can be found in

Application Note AN9975.

+5V

6.19kΩ

10.0kΩ

8200pF

1.00kΩ

0.1µF

ISL6431A

VCC

5

+

CIN

2 x 330µF

MONITOR

AND

PROTECTION

1 BOOT

COMP/OCSET 7

REF

470pF

+-

FB 6

U1

OSC

+-

3

GND

2 UGATE

8 PHASE

4 LGATE

3.16kΩ

60.4Ω

18000pF

2 x 1µF

D1

0.1µF

Q1

L1

VOUT

Q2

COUT +

0.1µF

3 x 330µF

Component Selection Notes:

CIN - Each 330mF 6.3WVDC, Sanyo 6TPB330M or Equivalent.

COUT - Each 330mF 6.3WVDC, Sanyo 6TPB330M or Equivalent.

D1 - 30mA Schottky Diode, MA732 or Equivalent

L1 - 3.1µH Inductor, Panasonic P/N ETQ-P6F2ROLFA or Equivalent.

Q1, Q2 - Intersil MOSFET; HUF76143.

FIGURE 8. 5V to 3.3V 15A DC-DC CONVERTER

9

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